Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1975-05-05
1976-07-06
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188195, 188349, 303 22R, B60T 818, B60T 826
Patent
active
039678610
ABSTRACT:
A reducing valve which performs proper vehicle braking control in proportional response to the load being carried on the vehicle by sealing off a hydraulic braking pressure, which is regulated to be proportional to the load on the vehicle, in a control chamber through the use of a control valve for the control of the pressure reducing function of the reducing valve. The control valve is regulated to remain open, in opposition to the applied hydraulic pressure from the braking pressure source, in proportion to the increase of vehicle load thereby correspondingly raising the reduction starting pressure of the reducing valve which reduces the braking hydraulic pressure to the rear wheel brakes of the vehicle. The reducing valve according to the present invention indirectly controls the reduction starting pressure by changing the hydraulic pressure of the control chamber which is proportional to the load on the vehicle thereby obtaining accurate operation without experiencing any of the various types of mechanical losses which accompany the change of mechanical forces observed with the conventional type reducing valve.
REFERENCES:
patent: 3245729 (1966-04-01), Shellhouse
patent: 3403946 (1968-10-01), Thirion
patent: 3430660 (1969-03-01), Mitton
patent: 3736031 (1973-05-01), Yabuta et al.
patent: 3825303 (1974-07-01), Yabuta
patent: 3837713 (1974-09-01), Masuda et al.
Blix Trygve M.
Butler Douglas C.
Sumitomo Electric Industries Ltd.
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